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Customer Reviews (4) LN Landon N
Unlike oral supplements, which must pass through the digestive system and may be poorly absorbed, B12 injections bypass the gut entirely
It names pregnant or breastfeeding individuals and people with a history of medullary thyroid cancer, multiple endocrine neoplasia type 2, severe kidney disease, or active pancreatitis as requiring modified or avoided therapy
They aren't mutually exclusive -- many patients benefit from both
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